Fig. 3: Examples of sweat collecting and control.
From: A review of sampling, energy supply and intelligent monitoring for long-term sweat sensors

(a) A sweat-collecting patch that can collect sweat efficiently for fast and continuous healthcare monitoring. Ref. 63, Copyright 2021, Advanced Materials. (b) A hydrophobic/superhydrophilic Janus polyester/nitrocellulose textile embedded with a conical micropore array that has a hydrophilic inner surface. Ref. 64, Copyright 2019, Advanced Materials. (c) A thin, soft, skin-like microfluidic platform that bonds to the skin to allow for the collection and storage of sweat in an interconnected set of micro reservoirs. Ref. 69, Copyright 2017, Advanced Healthcare Materials.